PDF Signature Checker

Signature

Enterprise-grade document protection and authentication tools.

Select a PDF to protect, sign, or verify

Select PDF

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Document Analysis

This tool scans the PDF for digital signature fields. It does not validate certificates or prove that the content is unchanged.

Detection Scope

Digital Signatures (PKCS#7) Signature Field Detection

Applying cryptographic layers and processing assets

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About the PDF Signature Checker

Check whether a PDF contains signature fields or embedded digital signatures.

Upload your PDF.
Choose the Detection Scope: Digital Signatures (PKCS#7) or Signature Field Detection.
Run the check and read the report.

Finding a signature does not prove it is valid or trusted. Use a full PDF reader for legal verification.

Does this verify who signed the document?

No. It only detects the presence of signatures and fields. Full validation needs a trusted certificate check.